# File lib/facter/util/xendomains.rb, line 6
  def self.xen_command
    if File.file?('/usr/lib/xen-common/bin/xen-toolstack')
      xen_toolstack_cmd = Facter::Util::Resolution.exec('/usr/lib/xen-common/bin/xen-toolstack')
      if xen_toolstack_cmd
        xen_toolstack_cmd.chomp
      else
        nil
      end
    else
      XEN_COMMANDS.find { |cmd| Facter::Util::Resolution.which(cmd) }
    end
  end